The two X-47B technology demonstrators will be retired and probably donated to a museum or stored at the "boneyard", the Aerospace Maintenance and Regeneration Group (AMARG) at Davis Monthan Air Force Base, Arizona, after these aerial refueling tests. Navy stealth killer drones are "just" a technology demonstrator, a testbed for the future planned Navy's Unmanned Carrier Launched Surveillance and Strike (UCLASS). https://www.youtube.com/watch?v=rIRwsOG_AYQ

Here is the video of the UCAS-D pluggin the retractable IFR (In-Flight Refueling) probe in the tanker hose basket.